ABB ESB20-20N-06 접촉기

ABB ESB20-20N-06 Technical Analysis Report

This is a 2-pole, 20에이, 2아니요, 230V AC/DC universal coil modular installation 접촉기, suitable for single-phase load control in residential and industrial environments. It features silent operation, 낮은 전력 소비, and integrated overvoltage protection, with a width of only 18mm and standard 35mm DIN rail mounting. Order code: 1SBE121111R0620.

1. 모델 분석

2. 핵심사양

전기 데이터

기계 & 환경 데이터

3. 기능 설명
4. Universal coil technology: AC/DC universal coil, no AC/DC distinction, 유연한 설치, completely silent and vibration-free operation.
5. Integrated overvoltage protection: Built-in overvoltage suppression in control circuit, improves system reliability and service life.
6. 모듈형 디자인: 폭이 18mm에 불과하다, fully compatible with other modular DIN rail components, 캐비닛 공간 절약.
7. 액세서리 호환성: Supports standard accessories (보조 접점, 기계적 인터록, 등.), tool-free plug-and-play installation.
8. 안전설계: Complies with EN/IEC/UL standards, provides reliable electrical isolation for personnel and equipment safety.
9. 폭넓은 적용: Suitable for controlling electric heaters, hot water systems, pump/fan motors, lighting and other single-phase loads.
10. 선택 권장 사항

적합한 용도

조명, 난방, ventilation control in residential and commercial buildings

단상 모터 제어 (슬리퍼, 팬) for small industrial equipment

Noise-sensitive environments (병원, 부엌, homes)

Space-limited distribution boards / 제어 캐비닛

선택 기준

1. Load type matching:

저항 부하 (AC-1): Use 20A rated current directly

모터 부하 (AC-7a/7b): Recommended ≤9A (4.6kW) at 230V single-phase

Inductive load: Derating or surge suppressor recommended

2. Coil voltage selection:

Match control system supply (230V AC/DC)

Other voltages available: ESB20-20N-01 (24다섯), ESB20-20N-04 (110다섯)

3. 연락처 구성:

이 모델: 2아니요, suitable for two independent circuits

For NC contacts: ESB20-02N series (2NC)

For auxiliary contacts: Add auxiliary contact modules

4. 환경 조건:

Derate above +40°C ambient temperature

Extra protection required in humid or corrosive environments

5. 설치 참고 사항

Pre-Installation

Verify model matches order, inspect for physical damage

Confirm coil voltage matches control supply

Prepare standard 35mm DIN rail and suitable terminals

설치 절차

Clip contactor firmly onto 35mm DIN rail

Wire main and control circuits per diagram; coil is non-polarized

단자 토크: 2.5N·m (conductor: 0.5–2.5mm²)

Accessories clip directly onto top/side without tools

안전

Isolate and verify voltage-free before installation

Separate main and control wiring to avoid interference

Ensure adequate ventilation to prevent overheating

Maintain ≥5mm clearance around contactor for heat dissipation

시운전 & 유지

Check wiring before first energization

Test contactor operation for correct switching and no abnormal noise

Inspect contacts and terminal tightness regularly (at least annually)

6. 대체 모델

동일 시리즈 대안

업그레이드된 대안

ABB ESB20-20N-06 is a compact, high-performance installation contactor. With silent operation, universal coil, low power consumption and modular design, it is an ideal solution for single-phase load control in residential and industrial applications. Proper selection, installation and maintenance ensure long-term reliable performance and safe, efficient control for electrical systems.

ABB Contactor Standard Selection Procedure

(산업용 & 건물, for sales / quotation / 설계)

Using ESB (건물) and AF/A (산업의) as examples – 8-step precise selection ready for proposals and quotations.

1. Define Application & 제품군

건물 / 주거용 / Distribution board: 조명, 난방, 슬리퍼, 팬, small motors → ESB/EN series (조용한, DIN 레일, narrow width)

산업용 / 장비 / Control cabinet: 팬, 슬리퍼, 압축기, motor main circuits → AF/A series (넓은 전압, 장수, 튼튼한)

2. Determine Load Category (Critical for Derating)

Per IEC 60947 utilization categories:

AC-1: Resistive loads (히터, 조명) → use rated current directly

AC-3: Squirrel-cage motor DOL (most common industrial) → motor current ≤ contactor rated current

AC-7a/7b: Building small motors, 팬, pumps → use building contactor rated values

3. Calculate Operating Current & 정격 용량
4. Determine current from power / 전압
5. Allow 1.1–1.25x safety margin (돌입, 지속적인 의무)
6. Select corresponding rated current (즉) from ABB catalog

예: 230V single-phase 2kW heater ≈ 8.7A → ESB20-20N is sufficient

4. Select Number of Poles

1피: 단상, single circuit

2피: 단상, double-pole (L+N switching, building standard)

3피: Three-phase motors / 산업의 (가장 일반적인)

4피: 삼상 + N or double-break

5. Select Coil Voltage & 유형
6. 제어 전압: 24다섯, 110다섯, 230다섯, 400다섯, 등.
7. 코일 종류:

건물: AC/DC universal coil (ESB series, non-polar, 조용한)

산업용: 광범위한 코일 (AF series, stable at 85–110% Un)

6. Define Auxiliary Contact Requirements

내장: From model (20=2NO, 02=2NC)

확장 가능: EH series auxiliary contacts (1아니요+1NC, 2아니요, 등.)

Used for: Status feedback, interlocking, sequential control

7. 환경 & 특별 요구 사항

고도 >1000중, 온도 >40°C → derate or upsize

Silent requirement (residential/office): Must use ESB silent type

보호: IP20 normally sufficient for panel mounting

기계적 인터록 / reversing: Use dedicated interlock accessories

8. Final Verification: 모델 + 인증
9. Confirm full model: family–current–contacts–coil

예: ESB20-20N-06

2. Verify certifications: CCC, IEC, RoHS 규제
3. Confirm mounting: 35mm DIN 레일 / 나사 장착

Simplified Selection Mnemonic

1. Choose family by application
2. Choose duty by load type
3. Calculate current with margin
4. Confirm poles and coil voltage
5. Add aux contacts for control
6. Check environment and derate
7. Verify model for final list